14 Facts About Rhenium

Rhenium is a chemical element with the symbol Re and atomic number 75.

Rhenium resembles manganese and technetium chemically and is mainly obtained as a by-product of the extraction and refinement of molybdenum and copper ores.

Rhenium was the last-discovered of the elements that have a stable isotope .

Rhenium is generally considered to have been discovered by Walter Noddack, Ida Noddack, and Otto Berg in Germany.

Rhenium is a silvery-white metal with one of the highest melting points of all elements, exceeded by only tungsten and carbon.

Related searches

Rhenium has one stable isotope, rhenium-185, which nevertheless occurs in minority abundance, a situation found only in two other elements .

Rhenium compounds are known for all the oxidation states between -3 and +7 except -2.

Rhenium is most available commercially as salts of perrhenate, including sodium and ammonium perrhenates.

Rhenium diboride is a hard compound having a hardness similar to that of tungsten carbide, silicon carbide, titanium diboride or zirconium diboride.

Rhenium is probably not found free in nature, but occurs in amounts up to 0.

Rhenium is used in the superalloys, such as CMSX-4 and CMSX-10 that are used in industrial gas turbine engines like the GE 7FA.

Rhenium has a high melting point and a low vapor pressure similar to tantalum and tungsten.

Rhenium in the form of rhenium-platinum alloy is used as catalyst for catalytic reforming, which is a chemical process to convert petroleum refinery naphthas with low octane ratings into high-octane liquid products.

Rhenium catalysts are very resistant to chemical poisoning from nitrogen, sulfur and phosphorus, and so are used in certain kinds of hydrogenation reactions.